Comments

@HIS_Films This could be done with masks or a green glove. Since you you don't actually see the cut that severs the arm (a much harder shot BTW), you simply create a mask to remove the lower portion of the arm. Now, the arm on the ground would easiest be done by inverting that mask and exporting a PNG of only that portion of the arm you masked out in the other shot. You could take it into a photoediting program and create a bloody end to it if you needed for realism and same with the other portion; create a stump PNG in photo software and track/parent it to the arm in the shot. But that's just how I would approach it. I'm sure there are better ways somebody else may know.

@HIS_FIlms&nbsp; When in doubt always clean plate. You never know what might come up in post and that it will save your butt. Truthfully, it's not a practice that I adhere to as religiously as I should either.